{"id":"https://openalex.org/W2888641704","doi":"https://doi.org/10.1109/eucnc.2018.8442523","title":"Energy-Efficient Sources and Relay Precoding Design for Two-Way Two-Hop MIMO-AF Systems","display_name":"Energy-Efficient Sources and Relay Precoding Design for Two-Way Two-Hop MIMO-AF Systems","publication_year":2018,"publication_date":"2018-06-01","ids":{"openalex":"https://openalex.org/W2888641704","doi":"https://doi.org/10.1109/eucnc.2018.8442523","mag":"2888641704"},"language":"en","primary_location":{"id":"doi:10.1109/eucnc.2018.8442523","is_oa":false,"landing_page_url":"https://doi.org/10.1109/eucnc.2018.8442523","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 European Conference on Networks and Communications (EuCNC)","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5074677171","display_name":"Fabien H\u00e9liot","orcid":"https://orcid.org/0000-0003-3583-3435"},"institutions":[{"id":"https://openalex.org/I28290843","display_name":"University of Surrey","ror":"https://ror.org/00ks66431","country_code":"GB","type":"education","lineage":["https://openalex.org/I28290843"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Fabien Heliot","raw_affiliation_strings":["Institute for Communication Systems, University of Surrey, Guildford, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute for Communication Systems, University of Surrey, Guildford, UK","institution_ids":["https://openalex.org/I28290843"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5032549075","display_name":"Rahim Tafazolli","orcid":"https://orcid.org/0000-0002-6062-8639"},"institutions":[{"id":"https://openalex.org/I28290843","display_name":"University of Surrey","ror":"https://ror.org/00ks66431","country_code":"GB","type":"education","lineage":["https://openalex.org/I28290843"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Rahim Tafazolli","raw_affiliation_strings":["Institute for Communication Systems, University of Surrey, Guildford, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute for Communication Systems, University of Surrey, Guildford, UK","institution_ids":["https://openalex.org/I28290843"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I28290843"],"apc_list":null,"apc_paid":null,"fwci":1.1309,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.76096983,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"87","last_page":"92"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12791","display_name":"Full-Duplex Wireless Communications","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.9272154569625854},{"id":"https://openalex.org/keywords/relay","display_name":"Relay","score":0.8175644874572754},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7508431673049927},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.572117269039154},{"id":"https://openalex.org/keywords/efficient-energy-use","display_name":"Efficient energy use","score":0.5414813160896301},{"id":"https://openalex.org/keywords/hop","display_name":"Hop (telecommunications)","score":0.516901969909668},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.39525842666625977},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.19410720467567444},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.17241010069847107},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.15857869386672974},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.1279815435409546},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.048986613750457764},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.048680514097213745}],"concepts":[{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.9272154569625854},{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.8175644874572754},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7508431673049927},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.572117269039154},{"id":"https://openalex.org/C2742236","wikidata":"https://www.wikidata.org/wiki/Q924713","display_name":"Efficient energy use","level":2,"score":0.5414813160896301},{"id":"https://openalex.org/C25906391","wikidata":"https://www.wikidata.org/wiki/Q1432381","display_name":"Hop (telecommunications)","level":2,"score":0.516901969909668},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.39525842666625977},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.19410720467567444},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.17241010069847107},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.15857869386672974},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.1279815435409546},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.048986613750457764},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.048680514097213745},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/eucnc.2018.8442523","is_oa":false,"landing_page_url":"https://doi.org/10.1109/eucnc.2018.8442523","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 European Conference on Networks and Communications (EuCNC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.9100000262260437,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W2049399010","https://openalex.org/W2076853942","https://openalex.org/W2077396458","https://openalex.org/W2078772482","https://openalex.org/W2091240134","https://openalex.org/W2112170521","https://openalex.org/W2119280464","https://openalex.org/W2126087318","https://openalex.org/W2141162475","https://openalex.org/W2143310681","https://openalex.org/W2156244246","https://openalex.org/W2165517987","https://openalex.org/W2468552344","https://openalex.org/W2511953462","https://openalex.org/W2545387088","https://openalex.org/W2595142274","https://openalex.org/W2766311955","https://openalex.org/W2976805811","https://openalex.org/W4250589301","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W4281688526","https://openalex.org/W2152088989","https://openalex.org/W2756419127","https://openalex.org/W4366493479","https://openalex.org/W2905893439","https://openalex.org/W3135374966","https://openalex.org/W2554517556","https://openalex.org/W2489379490","https://openalex.org/W2141031289","https://openalex.org/W2519669146"],"abstract_inverted_index":{"This":[0],"paper":[1],"proposes":[2],"a":[3,32,41],"novel":[4,77],"approach":[5,78],"for":[6],"maximising":[7],"the":[8,13,36,47,67,70,81],"energy":[9],"efficiency":[10],"(EE)":[11],"of":[12,35,69,83],"two-way":[14,84,99],"two-hop":[15],"multiple-input-multiple-output":[16],"(MIMO)":[17],"amplify-and-forward":[18],"(AF)":[19],"system":[20],"by":[21,87],"optimising":[22],"its":[23],"sources":[24],"and":[25,45],"relay":[26,43,49],"precoders.":[27],"More":[28],"precisely,":[29],"we":[30],"derive":[31],"closed-form":[33],"expression":[34],"optimal":[37,48],"source":[38,53],"precoders":[39],"(for":[40,51],"known":[42,52],"precoder)":[44],"obtain":[46],"precoder":[50],"precoders)":[54],"through":[55],"quasiconvex":[56],"optimisation.":[57],"An":[58],"alternating":[59],"optimisation":[60],"process":[61],"is":[62],"then":[63],"utilised":[64],"to":[65],"maximize":[66],"EE":[68,82],"system.":[71],"Simulation":[72],"results":[73],"show":[74],"that":[75],"our":[76],"can":[79],"improve":[80],"MIMO-AF":[85,100],"systems":[86],"~":[88],"50%":[89],"or":[90,98],"more":[91],"when":[92],"compared":[93],"with":[94],"existing":[95],"EEbased":[96],"one-way":[97],"precoding":[101],"schemes.":[102]},"counts_by_year":[{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":1}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}
